Polar H10 drops out mid ride.
Multiple bike rides in a row my Polar H10 HRM creaps down to 50ish hr then gets stuck there 20 to 30 minutes into a ride despite my actual HR likely being in the 140s. It starts the ride fine registering accurately.
Is there a way to fix this? Its gotten to the point i just cant trust it. The HRM is only 8 months old.